name: "CodeQL"

on:
  push:
    branches: [ "master" ]
    paths-ignore:
      - 'doc/**'
      - '**/man'
      - '**.md'
      - '**.rdoc'
      - '**/.document'
  pull_request:
    paths-ignore:
      - 'doc/**'
      - '**/man'
      - '**.md'
      - '**.rdoc'
      - '**/.document'
  schedule:
    - cron: '0 12 * * *'
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}

permissions:  # added using https://github.com/step-security/secure-workflows
  contents: read

jobs:
  analyze:
    name: Analyze
    runs-on: ubuntu-latest
    permissions:
      actions: read  # for github/codeql-action/init to get workflow details
      contents: read  # for actions/checkout to fetch code
      security-events: write  # for github/codeql-action/autobuild to send a status report
    # CodeQL fails to run pull requests from dependabot due to missing write access to upload results.
    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') && github.event.head_commit.pusher.name != 'dependabot[bot]' }}

    env:
      enable_install_doc: no

    strategy:
      fail-fast: false
      matrix:
        language: [ 'cpp', 'ruby' ]

    steps:
    - name: Install libraries
      run: |
        set -x
        sudo apt-get update -q || :
        sudo apt-get install --no-install-recommends -q -y build-essential libssl-dev libyaml-dev libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev autoconf ruby

    - name: Checkout repository
      uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3

    - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
      with:
        path: .downloaded-cache
        key: downloaded-cache

    - name: Remove an obsolete rubygems vendored file
      run: sudo rm /usr/lib/ruby/vendor_ruby/rubygems/defaults/operating_system.rb

    - name: Initialize CodeQL
      uses: github/codeql-action/init@cdcdbb579706841c47f7063dda365e292e5cad7a # v2.13.4
      with:
        languages: ${{ matrix.language }}

    - name: Set ENV
      run: echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV

    - name: Autobuild
      uses: github/codeql-action/autobuild@cdcdbb579706841c47f7063dda365e292e5cad7a # v2.13.4

    - name: Perform CodeQL Analysis
      uses: github/codeql-action/analyze@cdcdbb579706841c47f7063dda365e292e5cad7a # v2.13.4
      with:
        category: "/language:${{matrix.language}}"
        upload: False
        output: sarif-results

    - name: filter-sarif
      uses: advanced-security/filter-sarif@f3b8118a9349d88f7b1c0c488476411145b6270d # v1.0
      with:
        patterns: |
          +**/*.rb
          -lib/uri/mailto.rb:rb/overly-large-range
          -lib/uri/rfc3986_parser.rb:rb/overly-large-range
          -lib/bundler/vendor/uri/lib/uri/mailto.rb:rb/overly-large-range
          -lib/bundler/vendor/uri/lib/uri/rfc3986_parser.rb:rb/overly-large-range
          -test/ruby/test_io.rb:rb/non-constant-kernel-open
          -test/open-uri/test_open-uri.rb:rb/non-constant-kernel-open
          -test/open-uri/test_ssl.rb:rb/non-constant-kernel-open
          -spec/ruby/core/io/binread_spec.rb:rb/non-constant-kernel-open
          -spec/ruby/core/io/readlines_spec.rb:rb/non-constant-kernel-open
          -spec/ruby/core/io/foreach_spec.rb:rb/non-constant-kernel-open
          -spec/ruby/core/io/write_spec.rb:rb/non-constant-kernel-open
          -spec/ruby/core/io/read_spec.rb:rb/non-constant-kernel-open
          -spec/ruby/core/kernel/open_spec.rb:rb/non-constant-kernel-open
        input: sarif-results/${{ matrix.language }}.sarif
        output: sarif-results/${{ matrix.language }}.sarif
      if: ${{ matrix.language == 'ruby' }}

    - name: Upload SARIF
      uses: github/codeql-action/upload-sarif@cdcdbb579706841c47f7063dda365e292e5cad7a # v2.13.4
      with:
        sarif_file: sarif-results/${{ matrix.language }}.sarif
